文档介绍：
基于多特征联盟的无线传感网目标检测定
位研究#
*
5
10
(西安交通大学系统工程研究所)
摘要:无线传感网中,大量节点互相协作对潜在目标进行检测定位。节点间如何形成协作联盟,联盟内部、
联盟之间如何协作,如何在噪声和复杂背景下对目标进行检测定位,需要深入的研究。在考虑降低节点间
通信能耗、平衡节点任务与降低节点计算能耗的条件下,本文设计了一种扁平与分级共存的节点协同架构,
基于该架构,设定节点间协同关系;在协同架构的基础上,建立多特征动态联盟协作机制,以特征为导向
组建联盟;此外,拟将背景抑制思想引入无线传感网目标检测定位中,建立一种具有后验概率意义的分布
式定位算法,以减小环境噪声和复杂背景的影响,提高目标检测定位的准确性,并使其结果具有后验概率
意义的理论支持。
关键词:无线传感网、目标检测、联盟、后验概率
中图分类号:TP391
15
Multi-feature Alliance based Target Detection and
Localization in Wireless work
LU Na
(Systems Engineering Institute, Xi'an Jiaotong University)
20
25
30
35
40
Abstract: In wireless work (WSN), multiple sensor nodes cooperate to detect the
possible target. How to construct cooperative alliance among sensor nodes, and how the
cooperation intra and inter alliance should be carried out, still need to be addressed. To reduce the
communication cost between nodes, balance the workload and reduce putation cost on
each single node, a flat and bined nodes cooperation scheme is developed in this
paper. Based on which, the cooperative relation between nodes is determined and a multi-feature
dynamic alliance mechanism is designed, where the alliance formation is guided by features. In
addition, the idea of background inhibition is introduced into the target detection in WSN, and a
distributed target detection algorithm is developed which maximizes a posterior probability of the